Nut-lock.



W. P. & S. G. THOMSON.

NUT LOOK.

APPLICATION FILED NOV. 12, 1907. 1,004,502, Patented Sept.- 26,1911;

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4 WITNESSES .5 mvcm-ons w. P. & s. e. THOMSON. NUT LOOK.

AHLIOATION FILED NOV. 2, 1007.

1 004 502; Patented Sept. 26, 1911.

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W. P. 6: S. G. THOMSON.

NUT LOOK.

APPLICATION FILED NOV. 12, 1807. I y 1,004,502, Patented Sept. 26, 1911.

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UNITED strains PATENT onrion;

WILLIAM 1. THOMSON AND SAMUEL G. THOMSON, OI" PHILADELPHIA; IPENN SYLVANIA; ASSIGNORS TO THOMSON-THOMSON COMPANY, OF PHILADELPHIA, PENNSYLVANIA,

A PARTNERSHIP.

NUT-LOCK.

Application filed November 12, 1907. Serial No..401,825.

. which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, in which-- Figures 1., 2 and 3 are different elevations, showing one form of our invention; 4 to 27:, inclusive, illustrate modified forms and Fig. 28 is the application of one form of our invention to a rail joint splice r.

The invention relates to nut locks, and is designed to provide a simple and cheap device of this character which is especially adapted for bolting faces, which extend at other" than a -=right angle to the axis of the bolt. It is especially designed for railroad angle bars, wherein the angle bar has an inclined or curved bolting face.

Heretofore it has been proposed to use a washer contacting with the face of the angle bar and providing on its other face a vertical bolting face for the nut or bolt head. In this connection, oar-invention combines both the functions of such a washer with those of ,a nut lock.

In the drawings, referring to the form of Figs. 1, 2 and 3, the nut lock is shown as comprising a spring ring'Q, having an inclined or beveled face at one side while theother face 4 is straight or vertical when the two portions of the split ring are forced into substantially the same plane. In this form, one end 5 of the ring is bent outwardly to form a point or cutting edge, While the other end (5 is provided with a side lip for the same purpose. One or the other of these lips maybe used instead of both.

Fig. 4 illustrates a similar construction except that the engaging points 5 and (5 are bent in opposite directions.

In the forms of Figs. 1 to -t-, the beveled or inclined face of the ring prevents it from turning around with the bolt, owing to; the cam action between this face and the correspondingly inclined face of the angle bar.

We may, however, form the ring with a flattened edge portion,

as shown at 7, in

Specification ofLetters Patent.

Patented Sept. 26, 1911.

F511. 5, to lit against ,a.fiange of the anglehar and prevent turning. l I i Instead of a ring, a rectangular or square. washer plate of spring metal-mar be. em ployed as shown at 9 and .2 in Figs. 6 and, T. the corners being cut off in onelof these figures. f g i In Fig. 8, we have shown a for-111.2. silni-i lar to Fig. 1, except that-athe c utsof. ;t he ring are on radial lines. i

In 9 and 10, we. show a form similar:

to that of Fig. 1, except that the inneinface.

of the nut lock washer is. curved insteadof beveled and flat. The shape of this-inner face will depend on whether-gthe bolting face is on a straight angle or ona curyeg, In Figs. 11 and 12,1119 nut loclcis pf-Uy shape. 1 .1,

In Figs. 13 and 14,,weshow-;tl1q,h ltiti,.,; faces arranged on ditlerentwumfes with ditl', fercnt thickness of the ring. 1

.L'i'. In order to increase the gr1.1')p1ng action 1.."

of the sharp edges, we iua v. cut-awav the; bolting face of the ring; to leave a isharp shoulder, as shown at 8 ,in Figs. 15,16, and 17, thus giving a more;springpaction to, the engaging lips. j I,

In Figs. 18, 19 and 20, we have sln wn asimilar form except that: the fat-0 S? cutoff at a sharper angle thau,t he .rennrindeiaof. the bearing face.

In Figs. 21, 2'2 and 23. we have shown a form of the invention wherein the ring instead of being split, is solid. but is bent laterally. as shown at J, to give a spilngy form. This bent-out portion is shown as provided with a lip 6 to engage the nut or the surface.

In Figs. 2i and 95, we show a form wherein the legs of the ring are extended past eac'u other in the form of part of a spiral spring. In this case. the opposite legs are shown as provided with lips 6.

In Figs. 26 and 27, we show a double form wherein the bar 10 is provided with rm;

.loops 11. at its opposite ends, each of these loops being shown as tu-ovided with :1 latcrallv bent portion having a lip tr This forni is adapted to he used with two holts.

The advantages of our invention will be apparent to tho e skilled in the art.

\l'hen the bolting facil."- at an angle to the axis of the bolt. which is other than a right angle, the nut lock performs both the fan-aims 'Or ainiiti lock'proper, and ans-that;

' washer may be varied without departing described. 1 2. A combined nutlockand washer, havfrom the broad. bevel feature oflbur'invention, since this feature; may be -introduced into a nut lock of an form; I

We consiller ourse ves the first, to provide a nut lock evice which-is adapted for bolting against an inclinedjorcurved bolting face Without the intervention of a bevel washer or plate,.or other means for securinga vertical bolting face. In other Words, We.

are the first to provide a combined washer and nut lock which fits against an inclined or curved bolting face.

The Word f 'nclined as used by .us in the claims is intended to include, either a straight inclined face or a curved inclined face, the

inclination being either lnwardly or out'-- engaging the nut to increase the turning wardly in either case.

We claimlz 1. A combined nut I prising a body of spring material having a bolt-opening therethrough having its inner. and outer faces at anangle toeach other in both the free and locking positions of the device, said 'l'ock and washer having a spring portion adapted. to be seated and compressed between-an inclinedbearing surface and the inner plane face of a nut, substantially as ing a spring port-ion forming a nut bearing,

said lock having an inner face inclined to theinner face of the nut in both the free and locking positions of the washer, and decreasing in thickness in opposite directions tion on-the face,

lock and Washer, comlineagesas described."

3,. A-comhined nut lock and washer, comprising a split, spring" ring of decreasing thickness toward -both'its ends, one of its end'portions being normally out of'the plane of the other but being adapted to'be pressed crease in thickness being entirely face, substantially as described.

4. A combined nut-lock and washer, com

' A combined nut-lock and washer, comprising a split'member having a spring.por-' tion forming a nut bearing, the inner seating from arelatively thick portion, substantially '50 toward the plane of the other, and the deupon-one face without the intervention of a bevel face of said member being inclined in both the free and the looking or compressed positions of the member, and the outernut-bearing face-of said member having means for friction thereof; v

6. In a rail joint, the combination with a "splice'b ar having an outer face. inclined at an angle to the vertical, a nut, and a nut lock comprising a; wedge+shaped spring. 'bodyforming a seat for the nut and having its outer face substantially parallel to the inner face ofthe nut and'an' lnner face sub-' stantially parallel to said inclined outer face of the splice bar, substanti'allyas described. In testimony whereof, we have hereunto set our hands.

WILL-IAM I SAMUEL G. THOMSON.

Witnesses: 4

S. E. PA'ITERSON, MoLEoD THOMSOL P. THOMSOifi- 

